CPU
GPU
Turion II Ultra M660
Athlon II X4 640
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Turion II Ultra M660 is positioned at rank 220 and the Athlon II X4 640 is on rank 621, so the Turion II Ultra M660 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Turion II Ultra M660
Performance Per Dollar Athlon II X4 640
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Turion II Ultra M660 | Athlon II X4 640 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Caspian (2009) / 45 nm) | 🛑 Legacy (Propus (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Turion II Ultra M660 | Athlon II X4 640 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Valorant
Technical Specifications
Side-by-side comparison of Turion II Ultra M660 and Athlon II X4 640
Turion II Ultra M660
The Turion II Ultra M660 is manufactured by AMD. It was released in 2007-01-01. It is based on the Caspian (2009) architecture. It features 2 cores and 2 threads. Max frequency: 2.7 GHz. L2 cache: 2 MB. Built on 45 nm process technology. Socket: S1g3. Thermal design power (TDP): 2 MB. Memory support: DDR2. Passmark benchmark score: 2,278 points. Launch price was $69.
Athlon II X4 640
The Athlon II X4 640 is manufactured by AMD. It was released in 11 May 2010 (15 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,266 points. Launch price was $80.
Processing Power
The Turion II Ultra M660 packs 2 cores / 2 threads, while the Athlon II X4 640 offers 4 cores / 4 threads — the Athlon II X4 640 has 2 more cores. Boost clocks reach 2.7 GHz on the Turion II Ultra M660 versus 3 GHz on the Athlon II X4 640 — a 10.5% clock advantage for the Athlon II X4 640. The Turion II Ultra M660 uses the Caspian (2009) architecture (45 nm), while the Athlon II X4 640 uses Propus (2009−2011) (45 nm). In PassMark, the Turion II Ultra M660 scores 2,278 against the Athlon II X4 640's 2,266 — a 0.5% lead for the Turion II Ultra M660.
| Feature | Turion II Ultra M660 | Athlon II X4 640 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 2.7 GHz | 3 GHz+11% |
| Base Clock | — | 3 GHz |
| L3 Cache | — | 0 kB |
| L2 Cache | 2 MB+300% | 512 kB (per core) |
| Process | 45 nm | 45 nm |
| Architecture | Caspian (2009) | Propus (2009−2011) |
| PassMark | 2,278 | 2,266 |
| Cinebench R23 Multi | — | 1,471 |
| Geekbench 6 Single | — | 386 |
| Geekbench 6 Multi | — | 1,332 |
Memory & Platform
The Turion II Ultra M660 uses the S1g3 socket (PCIe 2.0), while the Athlon II X4 640 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-800 on the Turion II Ultra M660 versus DDR3-1333 on the Athlon II X4 640 — the Athlon II X4 640 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon II X4 640 supports up to 16 GB of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Turion II Ultra M660) vs 16 (Athlon II X4 640) — the Athlon II X4 640 offers 16 more lanes for additional GPUs or NVMe drives.
| Feature | Turion II Ultra M660 | Athlon II X4 640 |
|---|---|---|
| Socket | S1g3 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR2-800 | DDR3-1333+50% |
| Max RAM Capacity | 8 GB | 16 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Neither processor supports overclocking. Both support AMD-V virtualization. Primary use case: Turion II Ultra M660 targets Mobile, Athlon II X4 640 targets Budget. Direct competitor: Athlon II X4 640 rivals Core 2 Quad Q8300.
| Feature | Turion II Ultra M660 | Athlon II X4 640 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | AMD-V | AMD-V |
| Target Use | Mobile | Budget |
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